CN203950892U - 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate - Google Patents
2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate Download PDFInfo
- Publication number
- CN203950892U CN203950892U CN201420279337.6U CN201420279337U CN203950892U CN 203950892 U CN203950892 U CN 203950892U CN 201420279337 U CN201420279337 U CN 201420279337U CN 203950892 U CN203950892 U CN 203950892U
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- Prior art keywords
- resistance
- watts
- attenuators
- aluminum oxide
- thermal conductance
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000000758 substrate Substances 0.000 title claims abstract description 26
- 239000000919 ceramic Substances 0.000 title claims abstract description 15
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The utility model discloses 2 watts of 6dB attenuators of a kind of high thermal conductance aluminium oxide ceramic substrate, it is a kind of energy loss RF/Microwave element, it comprises a high heat conduction aluminum oxide substrate, the back up of described aluminum oxide substrate has back of the body conducting shell, the front of described aluminum oxide substrate is printed with wire, between described wire, be printed with 5 membranaceous resistance, described 5 membranaceous resistance have two resistance values identical, described membranaceous resistance plays attenuation by series-parallel circuit to the signal of telecommunication, by controlling the resistance value of described membranaceous resistance, obtain the pad value needing.This attenuator volume is little, and cost is low, filter with low insertion loss, and standing-wave ratio is little, and attenuation accuracy is high, and the frequency scope of application is wide, compatible with large scale integrated circuit production technology, is applicable to producing in enormous quantities.
Description
Technical field
The utility model relates to a kind of aluminium oxide ceramics attenuator, particularly 2 watts of 6dB attenuators of a kind of high thermal conductance aluminium oxide ceramic substrate.
Background technology
Attenuator, for the dual-port device that the incident power that makes power that output port provides be less than input port designs, is a kind of energy loss RF/Microwave element, attenuation describe power by attenuator after the degree that diminishes of power.The size of attenuation is determined by the material and the structure that form attenuator
The attenuator of at present integrated five membranaceous resistive arrangement is widely used in the apparatus field such as Aeronautics and Astronautics, radar, radio station, broadcast communication.Working load sheet can only merely consume and absorb unnecessary power; and use attenuator can also extract at the power that absorbs oppositely input the signal needing simultaneously, analyze; and on high-frequency circuit, adjust power level, decoupling, has played protective effect to relevant device.
Due to more Zao than domestic starting with manufacture to the research and development of like product abroad, the status of all having the advantage on product line or product performance.On domestic market, existing attenuator attenuation accuracy is low simultaneously, and the frequency range relative narrower that can use.The attenuator that we wish is a power consumption component, can not have impact to two terminal circuits, that is to say, all mates with two terminal circuits.When attenuation accuracy or VSWR do not reach while requiring, the signal that output obtains does not meet actual requirement.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model is to provide a kind of impedance and meets 83.5 ± 3% Ω, in 3G frequency range, take interior attenuation accuracy as 6 ± 0.5dB, standing wave requires input, output in 1.2, can meet 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate of the application requirements of current 3G network, replace same kind of products at abroad, and in characteristic, fill up the blank of home products.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
1. 2 watts of 6dB attenuators of one kind high thermal conductance aluminium oxide ceramic substrate, it comprises a high heat conduction aluminum oxide substrate, the back up of described aluminum oxide substrate has back of the body conducting shell, the front of described aluminum oxide substrate is printed with wire, between described wire, be printed with 5 membranaceous resistance, described 5 membranaceous resistance have two resistance values identical, and described membranaceous resistance plays attenuation by series-parallel circuit to the signal of telecommunication, by controlling the resistance value of described membranaceous resistance, obtain the pad value needing.
Preferably, described attenuator circuit is starched earth-continuity by low-temperature silver.
Preferably, 5 of described circuit membranaceous resistance are all printed on one deck high temp glass diaphragm.
Technique scheme has following beneficial effect: 2 watts of 6dB attenuator volumes of this high thermal conductance aluminium oxide ceramic substrate are little, cost is low, filter with low insertion loss, standing-wave ratio is little, attenuation accuracy is high, the frequency scope of application is wide, and compatible with large scale integrated circuit production technology, applicable production in enormous quantities can be widely used in the production of the microwave products such as apparatus field isolator, circulator such as Aeronautics and Astronautics, radar, radio station, broadcast communication.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be described in detail as follows.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 1,2 watts of 6dB attenuators of this high thermal conductance aluminium oxide ceramic substrate comprise a high heat conduction aluminum oxide substrate 1, and the back up of high heat conduction aluminum oxide substrate 1 has conductor layer, and conductor layer is formed by the printing of printed silver slurry.The front of high heat conduction aluminum oxide substrate 1 is printed with resistance R 1, R2, R3, R4, R5 and silver slurry wire 2; silver slurry wire 2 couples together resistance R 1, R2, R3, R4, R5 to form the attenuator circuit of a π type structure; on resistance R 1, R2, R3, R4, R5, be all printed with glass protection film 3, glass protection film 3 is for the protection of resistance R 1, R2, R3, R4, R5.The upper surface that is silver slurry wire 2 and glass protection film 3 at whole circuit is also printed with one deck black protective film 4, and black protective film 4 can wrap and protect whole circuit.
It is 83.5 ± 3% Ω that 2 watts of 6dB attenuators of this high thermal conductance aluminium oxide ceramic substrate require the impedance of input and ground connection, and the impedance of output and ground is 83.5 ± 3% Ω.Signal input part enters attenuator, through membranaceous resistance R 1, R2, R5, R3, the R4 progressively absorption to power, from the actual needed signal of output output.
2 watts of 6dB attenuator volumes of this high thermal conductance aluminium oxide ceramic substrate are little, cost is low, filter with low insertion loss, standing-wave ratio is little, attenuation accuracy is high, the frequency scope of application is wide, and compatible with large scale integrated circuit production technology, applicable production in enormous quantities can be widely used in the production of the microwave products such as apparatus field isolator, circulator such as Aeronautics and Astronautics, radar, radio station, broadcast communication.
The 2 watts of 6dB attenuators of a kind of high thermal conductance aluminium oxide ceramic substrate that above the utility model embodiment provided are described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; all will change in specific embodiments and applications; in sum; this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection range of the present utility model.
Claims (3)
1. 2 watts of 6dB attenuators of one kind high thermal conductance aluminium oxide ceramic substrate, it is characterized in that: it comprises a high heat conduction aluminum oxide substrate, the back up of described aluminum oxide substrate has back of the body conducting shell, the front of described aluminum oxide substrate is printed with wire, between described wire, be printed with 5 membranaceous resistance, described 5 membranaceous resistance have two resistance values identical, and described membranaceous resistance plays attenuation by series-parallel circuit to the signal of telecommunication, by controlling the resistance value of described membranaceous resistance, obtain the pad value needing.
2. 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate according to claim 1, is characterized in that: described attenuator circuit is starched earth-continuity by low-temperature silver.
3. 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate according to claim 1, is characterized in that: 5 membranaceous resistance of described circuit are all printed on one deck high temp glass diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279337.6U CN203950892U (en) | 2014-05-28 | 2014-05-28 | 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279337.6U CN203950892U (en) | 2014-05-28 | 2014-05-28 | 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950892U true CN203950892U (en) | 2014-11-19 |
Family
ID=51892911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279337.6U Expired - Lifetime CN203950892U (en) | 2014-05-28 | 2014-05-28 | 2 watts of 6dB attenuators of high thermal conductance aluminium oxide ceramic substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950892U (en) |
-
2014
- 2014-05-28 CN CN201420279337.6U patent/CN203950892U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 No. 369 factory building, 18 deer Road, Suzhou hi tech Zone, Jiangsu Patentee after: SUZHOU CITY, PRUDENTIAL'S ELECTRONICS CO.,LTD. Address before: 215129 No. 369 factory building, 18 deer Road, Suzhou hi tech Zone, Jiangsu Patentee before: SUZHOU NEW CHENGSHI ELECTRONIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |